[urq] Engine light

[Schaible, David]

I thought check engine light for 83 was triggered by the speedo
transmission box, has nothing to do with sensor output, just amount of
miles.  just push the reset button and it goes away.

-----Original Message-----
From: Buchholz, Steven [mailto:Steven.Buchholz at kla-tencor.com] 
Sent: Friday, March 16, 2007 3:42 PM
To: ANTHONY ATTARD; urq at audifans.com
Subject: Re: [urq] Engine light

... what US urq has a check engine light!!!  Oh, we're talking about an
'88 90Q ... 

I don't know about your particular model, but the typical method for
reading codes out of other cars of that vintage (like the 5kQ) you
access the codes in the ECU by inserting a spare fuse in the socket on
top of the fuel pump relay.  This causes the codes to be blinked out via
the check engine light.  Use the ECU diagnostics section of Scott
Mockry's site for more details (www.sjmautotechnik.com).  Most codes are
intended to persist, if you have one that actually goes away you may
want to look at the owner's manual to see if it has any description of
this sort of situation.  Here again, for example on the 5kQ if the CEL
comes on intermittently it is a sign that the ECU is detecting
significant knock ... this may not end up creating a persistent code you
can blink out ...

Steve B

> -----Original Message-----
> From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On
Behalf Of
> ANTHONY ATTARD
> Sent: Friday, March 16, 2007 11:43 AM
> To: urq at audifans.com
> Subject: [urq] Engine light
> 
> Hi everyone.
> 
> My "check engine" light comes on after first starting
> and went down the road a mile or two.  Is there some
> way to determine cause of this without taking the car
> to the dealer and getting a diagnostic read out??  I
> would appreciate any input, and thanks in advance.
> BTW, this is on 88 model 90 Q.
> 
> Tony:  83 URQ, 86 4K CSQ, 88 model 90 Q
> 
> 
> 
> 
>
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